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Joined: Sep 2006
Posts: 5
S
Junior Member
when we apply the D.C source to inductor,current will rise in inductor. but when we switch off the supply how inductor will change its polarity?


satish
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Joined: May 2005
Posts: 178
J
Member
The current in the inductor doesn't change polarity, but the voltage across it does. The voltage is proportional to the change in the magnetic flux, so a decreasing flux has the opposite sign (polarity) from an increasing flux.

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